CN108206253A - Cell support assembly and method - Google Patents

Cell support assembly and method Download PDF

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Publication number
CN108206253A
CN108206253A CN201711313657.3A CN201711313657A CN108206253A CN 108206253 A CN108206253 A CN 108206253A CN 201711313657 A CN201711313657 A CN 201711313657A CN 108206253 A CN108206253 A CN 108206253A
Authority
CN
China
Prior art keywords
battery unit
fluid
airbag apparatus
cell support
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711313657.3A
Other languages
Chinese (zh)
Other versions
CN108206253B (en
Inventor
莫汉·卡卢卡尔
托马斯·J·库帕尔
布莱恩·约瑟夫·罗伯特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Global Technologies LLC
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Ford Global Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN108206253A publication Critical patent/CN108206253A/en
Application granted granted Critical
Publication of CN108206253B publication Critical patent/CN108206253B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A kind of exemplary battery support assembly includes the airbag apparatus of the groove at least one battery unit for receiving traction battery.Air bag provides fluid flow path, the second part in first part and the opposite the second side of groove which is branched into the end of groove on the first side of groove.A kind of exemplary battery method for supporting includes：Fluid stream is made to be moved along fluid flow path towards at least one battery unit；With the first or second part that stream is branched into fluid flow path so that flow and moved along the opposite side of at least one battery unit.

Description

Cell support assembly and method
Technical field
This disclosure relates to a kind of cell supporting device.More specifically, this disclosure relates to the flexible air-bag comprising fluid come Support the battery unit of electric vehicle.
Background technology
Electric vehicle is different from traditional motor vehicles, because electric vehicle uses one or more to be powered by traction battery Drive to a selection of Motor.Motor alternately or additionally can drive electric vehicle in internal combustion engine.Example electric vehicle Including hybrid electric vehicle (HEV), plug-in hybrid electric vehicle (PHEV), fuel-cell vehicle (FCV) and electricity Pond electric vehicle (BEV).
Traction battery is the traction battery of opposing high voltage potentials, is selectively the motor and other electric loadings of electric vehicle Power supply.Traction battery includes the battery unit of multiple interconnection of storage energy.The fixation that some traction batteries pass through relative stiffness Device supports battery unit.
Invention content
It is further included inter alia according to the cell support assembly of the illustrative aspect of the disclosure electric with traction is received The airbag apparatus of the groove of at least one battery unit in pond.Air bag provides fluid flow path, which exists The end of groove is branched into the second part in the second, opposite, side of the first part on the first side of groove and groove.
In another non-limiting example of aforementioned assembly, which is first end, and first part and It is assembled at the opposed second ends of groove two parts.
In another non-limiting example of any aforementioned assembly, which includes at least one battery in groove Unit.Air bag is circumferentially distributed about the entire periphery of at least one battery unit.
In another non-limiting example of any aforementioned assembly, which includes at least one battery in groove Unit.Air bag and at least one battery unit mutual compression against.
In another non-limiting example of any aforementioned assembly, airbag apparatus is the first airbag apparatus, and total Into including the second airbag apparatus.Fluid is connected to the first airbag apparatus and the second airbag apparatus from common input pipe.
In another non-limiting example of any aforementioned assembly, airbag apparatus is in the fluid inlet to first part Fork is punished, and airbag apparatus is in the fluid outlet from first part and from second with the fluid inlet to second part Partial fluid outlet is assembled.
In another non-limiting example of any aforementioned assembly, airbag apparatus is expandable and contractile.
In another non-limiting example of any aforementioned assembly, assembly includes moving the fluid through fluid flowing The pump in path.
In another non-limiting example of any aforementioned assembly, pump is the upstream of fluid flow path crotch Peristaltic pump.
In another non-limiting example of any aforementioned assembly, assembly includes at least one electricity being located in groove Pool unit.At least one battery unit have the terminal side with terminal and with terminal side it is laterally aligned it is multiple other Side.First side of groove and the second side of groove are positioned along other sides of battery unit.
Being further included inter alia according to the cell support method of the illustrative aspect of the disclosure makes fluid stream along stream Body flow path towards at least one battery unit moves and is branched into stream the first and second parts of fluid flow path, So that stream is moved along the opposite side portion of at least one battery unit.
In another non-limiting example of preceding method, this method includes will the stream from the first and second parts It assembles together, and stream is made to be moved far from battery unit.
In another non-limiting example of any preceding method, this method is included between fluid and battery unit Transferring heat energy is to manage the thermal energy at least one battery unit.
In another non-limiting example of any preceding method, this method is including the use of fluid flow path circumferential direction Ground surrounds at least one battery unit.
In another non-limiting example of any preceding method, at least one battery unit is at least one first Battery unit, and this method further comprises selectively increasing or decreasing stream using the first peristaltic pump, and use the Two peristaltic pumps are selectively increased or decreased to the stream of another fluid flow path, and another fluid flow path bifurcated is with along extremely The opposite side portion movement of few second battery unit.
Another non-limiting example of any preceding method is included in response to coming from least one first battery unit Sensing situation increase or decrease stream with the first peristaltic pump, and in response to the sensing shape from least one second battery unit Condition individually increases or decreases stream with the second peristaltic pump.
In another non-limiting example of any preceding method, fluid flow path is provided by flexible air-bag.
In another non-limiting example of any preceding method, the expansion of at least one battery unit forces fluid Flow out the first and second parts.
In another non-limiting example of any preceding method, this method includes mobile fluid source and first and the Fluid stream between two parts and the situation of at least one battery unit is estimated based on the Fluid Volume in fluid source.
In another non-limiting example of any preceding method, this method includes being supported with the first and second parts At least one battery unit.
Description of the drawings
From detail specifications, disclosed exemplary various feature and advantage for those skilled in the art will become it is aobvious and It is clear to.It can be briefly described below with the attached drawing of detailed description：
Fig. 1 schematically shows the exemplary power transmission system for electric vehicle；
Fig. 2 shows the close up perspective view of the example traction battery of the power drive system in Fig. 1；
Fig. 3 shows the schematic top plan view of the traction battery for the Fig. 2 for removing shell；
Fig. 4 shows that the battery unit of traction battery from Fig. 2 of the battery unit outside the groove of airbag apparatus is gentle The perspective view of bag apparatus；
Fig. 5 shows the vertical view of the battery unit in the groove of the airbag apparatus of Fig. 4；
Fig. 6 shows the battery unit in the groove of the airbag apparatus of Fig. 3 when battery unit is expanded from the position of Fig. 5 Vertical view；
Fig. 7 shows the battery unit of the traction battery from Fig. 2 of another exemplary embodiment according to the disclosure Birds-eye perspective；
Fig. 8 shows the battery unit of Fig. 7 when battery unit is expanded from the position of Fig. 7.
Specific embodiment
This disclosure relates to support the battery unit in the traction battery of electric vehicle.Battery unit is by being equipped with the air bag of fluid Device supports.Airbag apparatus is adapted to the expansion and contraction of battery unit, while still supports contact withs battery unit.Fluid Can the level of the thermal energy in the remainder of battery unit and traction battery be managed by airbag apparatus movement.
Fig. 1 schematically shows the power drive system 10 for electric vehicle.Although described as hybrid power electricity Motor-car (HEV), it is to be understood that design described herein is not limited to HEV and extends to the electricity of any other type Motor-car, including but not limited to plug-in hybrid electric vehicle (PHEV), battery electric vehicle (BEV), fuel-cell vehicle Etc..
Power drive system 10 includes the traction battery 14 with multiple arrays 18, internal combustion engine 20, motor 22 With generator 24.Motor 22 and generator 24 are the types of motor.Motor 22 and generator 24 can be separation or have group Close the form of motor generator.
In this embodiment, power drive system 10 is using the distribution of the power of the first drive system and the second drive system Power drive system.First and second drive systems generate torque to drive one or more groups of driving wheel of vehicle 28.First driving System includes the combination of engine 20 and generator 24.Second drive system includes at least motor 22, generator 24 and traction electricity Pond 14.Motor 22 and generator 24 are a parts for the power drive system of power drive system 10.
Engine 20 and generator 24 can be connected by power transfer unit 30 (such as planetary gear set).Certainly, may be used To use other kinds of power transfer unit, including other gear sets and transmission device, for engine 20 is connected to Generator 24.In one non-limiting embodiment, power transfer unit 30 is planetary gear set, including ring gear 32, Central gear 34 and pinion frame assembly 36.
Generator 24 can be driven by engine 20 by power transfer unit 30, to convert kinetic energy into electric energy.Hair Motor 24 can alternatively function as motor to convert electrical energy into kinetic energy, and power transfer unit is connected to so as to output torque to 30 axis 38.
The ring gear 32 of power transfer unit 30 is connected to axis 40, and axis 40 is connected to by the second power transfer unit 44 Driving wheel of vehicle 28.Second power transfer unit 44 can include the gear set with multiple gears 46.In other examples may be used To use other power transfer units.
Torque is transmitted to differential mechanism 48 by gear 46 from engine 20, to be finally that driving wheel of vehicle 28 provides tractive force. Differential mechanism 48 can include transferring torque to multiple gears of driving wheel of vehicle 28.In this example, the second power passes It passs unit 44 and axle 50 is mechanically connected to distribute torque to driving wheel of vehicle 28 by differential mechanism 48.
Motor 22 can be alternatively used for by 52 output torque of axis for being also connected to the second power transfer unit 44 To drive driving wheel of vehicle 28.In this embodiment, motor 22 and generator 24 coordinate the component as regeneration brake system, Middle motor 22 and generator 24 can be used as motor and carry out output torque.For example, motor 22 and generator 24 can export respectively Electric power is recharged with the battery unit to traction battery 14.
Referring now to Figure 2, according to exemplary, non-limitative embodiment, traction battery 14 is included as the more of array 18 A individual battery unit 60, multiple airbag apparatus 64 and shell 68.Battery unit 60 is arranged along axis A.Airbag apparatus 64 Battery unit 60 in support housing 68.More specifically, exemplary airbag apparatus 64 can limit battery unit 60 relative to that The movement in other regions of this and traction battery 14.Component is fixed to traction battery when for example manufacturing traction battery 14 When 14, keep battery unit 60 can be in order to battery unit 60 in traction battery 14 alignment.
In this example, airbag apparatus 64 is made of flexible polymer material (such as rubber), and which defines accommodate fluid Variable-volume.
Fluid may move through airbag apparatus 64.Fluid is moved to airbag apparatus 64 from entry conductor 72.Fluid is from gas Bag apparatus 64 is moved through delivery channel 76.In another example, each airbag apparatus 64 is supplied by individual conduit, is made The fluid that each obtained in airbag apparatus 64 provides and the fluid circuit of other airbag apparatus 64 in traction battery 14 separates The part in circuit.
The fluid for being moved through airbag apparatus 64 can be liquid or gas.Fluid can be cooling agent, such as water and second 50/50 mixture of glycol.
Battery unit 60 can be expanded and be shunk during cycle.Airbag apparatus 64 is expanded and is received together with battery unit 60 Contracting so that the holding of battery unit 60 is supported.When battery unit 60 is expanded compared to when battery unit 60 is shunk, air bag dress Put the less fluid of 64 holdings.
Example housings 68 include a pair of opposite end wall 80, a pair of opposite side wall 84, bottom plate 88 and top plate 92.Shell 68 keep airbag apparatus 64 and battery unit 60.
In this example, multiple spacers 96 are also held in shell 68.Spacer 96 can occupy the area in shell 68 Domain, airbag apparatus 64 to be prevented to be moved in these regions.Spacer 96 can be component (such as the bottom of such as support housing 68 Plate 88 and top plate 92) support column.
When compared with airbag apparatus 64,68 relative stiffness of spacer 96 and shell.Therefore, airbag apparatus 64 relative to The movement of spacing body 96 and shell 68 will not move spacer 96 and shell 68.
Airbag apparatus 64 is in direct contact battery unit 60 to support battery unit 60.Since airbag apparatus 64 is suitable for recycling The expansion and contraction of period battery unit 60, battery unit 60 are kept supporting during cycle by airbag apparatus 64.It can such as manage Solution, the support element of relative stiffness may not adapt to the significant expansion of the battery unit 60 in traction battery 14 and shrink.
Six individual battery units 60 are shown in the exemplary drag battery 14, but any quantity can be used Battery unit 60.Some example traction batteries 14 can include up to 100 and be grouped as the independent of ten cell arrays Battery unit 60.
Example battery unit 60 has rectangular profile.In other examples, battery unit 60 can be cylindrical.Unit Can be bag-shaped unit, prism-shaped unit, can-like unit etc..
Example battery unit 60 is the battery unit based on silicon (Si).Some are shown based on the battery unit of silicon during cycle Go out to be more than 200% volume expansion, the axial width W of battery unit 60 can be increased up to 20% by this during cycle.
Other exemplary unit cells 60 that can be significantly expanded during cycle include based on germanium (Ge) battery unit and Battery unit based on tin (Sn).
Although describe air bag with reference to battery unit of the support based on silicon and the battery unit significantly expanded during cycle Device 64, but the introduction of the disclosure is not limited to this battery unit.Airbag apparatus 64 can be used for supporting any kind of electricity Pool unit, the battery unit including being based on the battery unit of lithium titanate (LTO) and based on graphite.
Referring now to Fig. 3 and 4, each airbag apparatus 64 provides the groove 100 for receiving at least one of battery unit 60 Or open area.In this example, groove 100 receives one in battery unit 60.In another example, groove 100 receives Such as two in battery unit 60.
In the exemplary, non-limitative embodiment, groove 100 respectively has first end 104, the second end 108, the Side 112 and the second side 116.First end 104 is opposite with the second end 108.First side 112 is opposite with the second side 116.Groove 100 may be sized to generally follow the outer profile for receiving the battery unit 60 in groove 100.
Airbag apparatus 64 is established from path inlet PIExtend to path outlet POFluid flow path.The of groove 100 At one end 104, from entrance PIFluid flow path be branched into the first flowing path sections 120 entrance and second flowing The entrance of path sections 124.
The first part 120 of fluid flow path extends along the first side 112 of groove 100.The of fluid flow path Two parts 124 extend along the second side 116 of groove 100.When battery unit 60 is located in groove 100,120 edge of first part The first axis of battery unit 60 towards side 130 position, and second part 124 is along the second axis of battery unit 60 To towards side 134 position.First axis towards side 130 and the second side 134 being axially facing towards opposite side To.
At the second end 108 of groove 100, from the outlet of the first flowing path sections 120 and second flow path The flowing of the outlet of part 124 converges to outlet POIn.
When battery unit is located in groove 100, from entrance PIFluid flow path to first part 120 and The bifurcated of two parts 124 and the subsequent fluid stream from first part 120 and second part 124 converge to path outlet PO, allow entire periphery of the fluid flow path circumferentially about battery unit 60.Airbag apparatus 64 provides fluid flow path And therefore also circumferentially about the battery unit 60 being located in groove 100.
Path inlet PIReceive the fluid from inlet duct 72.Fluid is moved to inlet duct 72 from fluid source 150.
In this exemplary embodiment, the pump 154 of such as peristaltic pump is associated with each airbag apparatus 64.Example pump 154 are located at the upstream of the fluid flow path bifurcation site by airbag apparatus 64.Pump 154 can be used to adjust airbag apparatus 64 Interior Fluid pressure.In another example, it pumps fluid being moved to more than one airbag apparatus from fluid source 150, pump It can be used for moving liquid into and remove airbag apparatus 64.In some instances, pump 154 can prevent fluid from airbag apparatus 64 Entry conductor 72 is flowed back into, this can reduce the support of battery unit 60 provided by airbag apparatus 64.
In order to further control the Fluid pressure of airbag apparatus 64, path outlet PONeighbouring region can have what is reduced Diameter so that passage path does not export P to Fluid pressureORelease, and pressure is maintained in airbag apparatus 64.Alternatively or additionally Ground, in path outlet PONeighbouring region can be equipped with check-valves 158, with prevent when pump 154 do not provide normal pressure when (such as when When traction battery 14 is not run), 64 passage path of airbag apparatus outlet POIt deflates.Check-valves can be tied alternately or in addition It closes in other regions of fluid flow path.
The region of fluid flow path can also be included across pressure relief valve (pass through pressure Release valve) 162, this can prevent the overvoltage of airbag apparatus 64.
In some instances, it is controlled by the flowing of fluid flow path by pressure controller 166, the pressure controller 166 are programmed to pump operation 154, actuating check-valves 158, actuating pressure relief valve 162 or these certain combination.For example, pressure Force controller 166 is programmed to keep the Fluid pressure in flow path, and be especially held in desired pressure limit Fluid pressure in interior airbag apparatus 54 is programmed to the fluid of desired amount being moved through airbag apparatus 54.It can be with Control pump 154 is allowed more so that little flow is allowed to flow to one or more airbag apparatus 54 of traction battery group 14 Flow to other one or more airbag apparatus 54 of traction battery group 14.
For example, pump 154 can be controlled with the situation that is sensed in response to the battery unit 60 kept by airbag apparatus 64 and Selectively increase or decrease the flow for flowing to an airbag apparatus 64.The situation sensed can be by being used to measure the battery list The temperature of member 60, the pressure of the battery unit 60, both temperature and pressures or other conditions sensor provide.Sensor can To be integrated on battery unit 60.Sensor can be positioned in the groove between battery unit 60 and airbag apparatus 64.
With continued reference to Fig. 2, Fig. 5 shows that battery unit 60 and Fig. 6 with first axis width are shown due to electricity The expansion of pool unit 60 and with bigger the second axial width battery unit 60.Due to certain sun for being easy to expansion/contraction Pole material, the expansion of battery unit 60 may occur in the normal operation period.This material can include silicon, lithium, tin etc..Battery Unit 60 can also due to the gas that is gathered in the inside of battery unit 60 and in normal operating at any time and expand or It is expanded in the shorter period due to fault state.
Expansion is mainly axially facing side 134 by first axis aspect-oriented 130 and second and guides, because of these sides More than remaining side, and in addition, because bottom plate 88 and top plate 92 can limit the expansion of battery unit 60 up and down.
In other words, shell 68 can limit the expansion of battery unit 60 so that expand perpendicular to battery unit 60 It is concentrated on the direction of side 130 and 134 along axis A.
Though it is shown that shell 68, but other examples can limit battery unit 60 to expectation side using other devices To expansion.Bandage, binding item etc. are other examples of this device.
When battery unit 60 is expanded into the position of Fig. 6 from the position of Fig. 5, the body of first part 120 and second part 124 Product reduces.The reduction of volume adapts to the increased thickness of battery unit 60.Even if battery unit 60 expands, the first side 112 and Two sides 116 keep contacting against with battery unit 60 due to the fluid of the pressurization in first part 120 and second part 124.
The volume for reducing first part 120 and second part 124 causes the fluid from airbag apparatus 64 to be displaced.From The fluid that first part 120 and second part 124 are discharged increases the fluid levels in fluid source 150.
In some instances, the fluid levels in fluid source automatically, by observation or both are monitored.Fluid source The increase of fluid levels in 150 may indicate that one or more sizes of battery unit 60 have increased.The instruction can be with It is noted the shell 68 that traction battery 14 is opened without technical staff.For example, the height of fluid in fluid source 150 Suddenly change may indicate that fault state, the rapid expanding of the battery unit 60 in such as traction battery 14.
In some instances, the fluid in airbag apparatus 64 can be also used for management electricity other than supporting battery unit 60 Thermal energy in pool unit 60 is horizontal.For example, when fluid is moved through first part 120 and second part 124, airbag apparatus 64 In fluid can obtain the thermal energy from battery unit 60.This cooling battery unit 60.It is, for example, possible to use heat exchanger 168 cool down the fluid of heating, and be then recycled to fluid source 150.
Fluid can also be heated so that when being moved through airbag apparatus 64 fluid heats battery unit 60.In addition, Resistance heater can be incorporated into airbag apparatus 64 with heat fluid, battery unit 60, or both.
For battery unit 60 to be heated or cooled, if pressure controller 166 can be adjusted the fluid in airbag apparatus 64 The speed of each pump 154 is saved, airbag apparatus 64 is passed through with the different amounts of fluid of movement.If it such as is kept by airbag apparatus 64 Battery unit 60 heats more quickly than other battery units 60 in traction battery 14, then more fluid movement may be needed logical Cross one of airbag apparatus 64.Battery unit 60 is maintained at specific temperature range can improve the efficiency of traction battery 14.
Referring again to FIGS. 2, with continued reference to Fig. 3 to 6, battery unit 60 includes at least two terminals towards the surface of top plate 92 170.Busbar 174 can be used for being electrically connected the terminal 170 of battery unit 60.Busbar 174 be metal or metal alloy and It is rigid relative to battery unit 60 and airbag apparatus 64.Although it is shown as towards top plate 92, one or two terminal 170 can be located in another region, such as connected towards bottom plate 88, and by other busbars.
Electric energy can be moved to battery unit 60 by busbar 174 and be removed from battery unit 60.Electric energy can be with profit Traction battery 14 is moved to busbar or other electric connectors and is removed from traction battery 14.What battery unit 60 can connect Or electrical connection in parallel.
Referring now to Fig. 7 and 8, in the nonrestrictive modification of above-described embodiment, battery unit 60 is located in fixture 182 It is interior, and be then positioned in groove 100.Fixture 182 limits the expansion of battery unit 60 to concentrate in the axial direction in fixture Between 182 vertically extending support element 186.The substrate 190 and top plate 194 of fixture 182 limit the vertical swollen of battery unit 60 It is swollen.Support element 186 is connected to substrate 190 and top plate 194.In some non-limiting examples, fixture 182 provides airbag apparatus The compression of foundation level that 64 (Fig. 4) may not individually be provided.In some instances, battery unit 60 can be during cycle Benefit from compression.
Fig. 7 shows that the battery unit 60 that battery unit 60 is in than Fig. 8 expands smaller position.In the battery list of Fig. 8 In member 60, expansion is concentrated in the axial direction between the support element 186 extended vertically of fixture 182.
It is that aforementioned specification is exemplary in nature rather than restricted.To disclosed exemplary change and modification pair It may be become apparent for those skilled in the art, not necessarily deviate the essence of the disclosure.Therefore, the disclosure is given Legal scope can only be determined by studying following claims.

Claims (15)

1. a kind of cell support assembly, including：
The airbag apparatus of groove at least one battery unit for receiving traction battery, the air bag provide fluid flowing road Diameter, the fluid flow path are branched into first part on the first side of the groove in the end of the groove and in institutes State the second part in the second, opposite, side of groove.
2. cell support assembly according to claim 1, wherein the end is first end, and the first part It is assembled at the opposed second ends of the groove with the second part.
3. cell support assembly according to claim 1 further comprises being located at described at least one in the groove Battery unit, the air bag is circumferentially distributed about the entire periphery of at least one battery unit, and optionally, wherein institute State at least one battery unit have with terminal terminal side and with the terminal side it is laterally aligned it is multiple other Side, first side of the groove and the second side of the groove are determined along other sides of the battery unit Position.
4. cell support assembly according to claim 1 further comprises at least one battery in the groove Unit, the air bag and at least one battery unit mutual compression against.
5. cell support assembly according to claim 1, wherein the airbag apparatus is the first airbag apparatus, and described Cell support assembly further comprises the second airbag apparatus, and wherein fluid is communicated to first air bag from common input pipe Device and second airbag apparatus.
6. cell support assembly according to claim 1, wherein the airbag apparatus is in the fluid to the first part Entrance and the fluid inlet punishment fork to the second part, and the airbag apparatus is in the fluid from the first part Outlet and the fluid outlet convergence from the second part.
7. cell support assembly according to claim 1, wherein the airbag apparatus is inflatable and contractile.
8. cell support assembly according to claim 1 further comprises moving the fluid through the fluid flowing road The pump of diameter, and optionally, wherein the pump is the peristaltic pump of the upstream of fluid flow path crotch.
9. a kind of cell support method, including：
Fluid stream is made to be moved along fluid flow path towards at least one battery unit；With
The stream is branched into the first or second part of the fluid flow path so that the stream is along described at least one The opposite side movement of battery unit.
10. cell support method according to claim 9, further comprising will be from the first part and second part The stream assemble together and make it is described stream far from the battery unit move.
11. cell support method according to claim 9 further comprises between the fluid and the battery unit Transferring heat energy is to manage the thermal energy at least one battery unit, and optionally, the method includes with the fluid Flow path is circumferentially about at least one battery unit.
12. cell support method according to claim 9, wherein at least one battery unit is at least one first Battery unit, and the method further includes using the first peristaltic pump selectively to increase or decrease the stream, and It is selectively increased or decreased to the stream of another fluid flow path, another fluid flow path using the second peristaltic pump Bifurcated is moves, and optionally along the opposite side of at least one second battery unit, and the method includes in response to coming from The sensing situation of at least one first battery unit increases or decreases the stream, and respond with first peristaltic pump In the sensing situation from least one second battery unit, individually increased or decreased with second peristaltic pump described Stream.
13. cell support method according to claim 9, wherein the fluid flow path is provided by flexible air-bag, and And optionally, wherein the expansion of at least one battery unit forces fluid out the first part and second part.
14. cell support method according to claim 9 further comprises in fluid source and first and second part Between the mobile fluid stream, and the shape of at least one battery unit is estimated based on the Fluid Volume in the fluid source Condition.
15. cell support method according to claim 9 further comprises described in the support of first and second part At least one battery unit.
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